Claw  1.7.0
symmetric_easing.hpp
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00001 /*
00002   CLAW - a C++ Library Absolutely Wonderful
00003 
00004   CLAW is a free library without any particular aim but being useful to 
00005   anyone.
00006 
00007   Copyright (C) 2005-2011 Julien Jorge
00008 
00009   This library is free software; you can redistribute it and/or
00010   modify it under the terms of the GNU Lesser General Public
00011   License as published by the Free Software Foundation; either
00012   version 2.1 of the License, or (at your option) any later version.
00013 
00014   This library is distributed in the hope that it will be useful,
00015   but WITHOUT ANY WARRANTY; without even the implied warranty of
00016   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017   Lesser General Public License for more details.
00018 
00019   You should have received a copy of the GNU Lesser General Public
00020   License along with this library; if not, write to the Free Software
00021   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00022   contact: julien.jorge@gamned.org
00023 */
00029 #ifndef __CLAW_TWEEN_SYMMETRIC_EASING_HPP__
00030 #define __CLAW_TWEEN_SYMMETRIC_EASING_HPP__
00031 
00032 namespace claw
00033 {
00034   namespace tween
00035   {
00040     template<double (*Function)(double)>
00041     class symmetric_easing
00042     {
00043     public:
00044       static double ease_in( double t );
00045       static double ease_out( double t );
00046       static double ease_in_out( double t );
00047 
00048     }; // class symmetric_easing
00049 
00050   } // namespace tween
00051 } // namespace claw
00052 
00053 #include "claw/tween/easing/impl/symmetric_easing.tpp"
00054 
00055 #endif // __CLAW_TWEEN_SYMMETRIC_EASING_HPP__